Tender, golden-seared steak cubes and crisp zucchini tossed in a rich garlic butter sauce. A low-carb, one-pan meal that is ready in just 20 minutes – perfect for a quick and satisfying weeknight dinner.
1.5 lbs sirloin or ribeye steak, cut into 1-inch cubes
2 medium zucchini, sliced into 1/4-inch thick rounds
3 tablespoons olive oil, divided
4 cloves garlic, minced
1/4 cup butter, unsalted
1 teaspoon salt
1/2 teaspoon black pepper
1/4 teaspoon red pepper flakes (optional, for heat)
2 tablespoons fresh parsley, chopped, for garnish
Instructions
Pat the steak cubes completely dry with paper towels on all sides. Season generously with salt and black pepper.
Heat 1.5 tablespoons of olive oil in a large skillet or cast-iron pan over medium-high heat until shimmering and just beginning to haze.
Add half of the steak cubes in a single layer without crowding the pan. Sear for 60 to 90 seconds per side until a deep golden-brown crust forms. Remove to a plate and set aside.
Add the remaining 1.5 tablespoons of oil and repeat with the second batch of steak. Remove and set aside with the first batch.
Add the zucchini slices to the same skillet without wiping it out. Cook for 3 to 4 minutes, stirring occasionally, until tender-crisp and lightly golden at the edges.
Reduce heat to medium-low. Add the minced garlic and butter. Stir constantly for 30 to 60 seconds until the garlic is fragrant and the butter has fully melted. Do not let the garlic burn.
Return the seared steak bites to the skillet. Add the optional red pepper flakes and toss everything together to coat in the garlic butter sauce. Cook for 1 final minute to heat the steak through.
Remove from heat, stir in the fresh parsley, and serve immediately.
Notes
Always sear the steak in two separate batches. Crowding the pan causes steaming instead of searing and prevents the golden crust from forming.
Pat steak completely dry before seasoning and make sure the oil is fully hot and shimmering before adding the steak – this is the key to a great sear.
A cast-iron skillet gives the best heat retention and crust. Do not overcook the steak on the final step – it continues cooking slightly after being removed from heat.
Freezing is not recommended. The zucchini becomes mushy upon thawing. Store leftovers in the refrigerator for up to 3 days and reheat gently in a skillet.